US 2024/0198064 A1 · SYSTEMS AND METHODS FOR IMPLANTABLE SELF-MONITORING SYSTEMS TO DETECT PRESSURE AND FLOW CHARACTERISTICS

Abstract

A valve device monitoring system for at-home human-in-the-loop hydrocephalus shunt monitoring detects degradation and imminent failure of implantable devices for the treatment of hydrocephalus. Potential mechanisms for failure are presented and associated with observable parameters. The valve device monitoring system enables at-home testing using a non-invasive monitoring methodology. Development of a behavioral model of the valve device monitoring system involves a tightly-coupled valve design and behavioral characterization process aimed at reducing unnecessary monetary, material, animal welfare, and computational costs.

Claims20

Dependent claims

A valve monitoring system, comprising:

a sensor that generates a signal expressive of indirect operational characteristics of a valve device, the valve device being positioned between a first cavity and a second cavity of a bodily system for facilitating drainage of a fluid from the first cavity to the second cavity;
and
a processor in communication with a memory and the sensor, the memory including instructions executable by the processor to:
access signal data indicative of the signal generated by the sensor;
compare the signal data to a behavioral model associated with the valve device, the behavioral model connecting the indirect operational characteristics of the valve device expressed by the signal data with a parametric behavior characteristic of the valve device with respect to the bodily system;
and
infer a value of the parametric behavior characteristic of the valve device based on a comparison between the signal data and the behavioral model.

4 more elements

A method of inferring a value of a parametric behavior characteristic that indicates function of a valve device using a behavioral model of the valve device, the method comprising:

accessing signal data indicative of a signal generated by a sensor, the signal being expressive of one or more indirect operational characteristics of a valve device, the valve device being positioned between a first cavity and a second cavity of a bodily system for facilitating drainage of fluid from the first cavity to the second cavity;
comparing the signal data to a behavioral model associated with the valve device, the behavioral model connecting the one or more indirect operational characteristics of the valve device expressed by the signal data with one or more parametric behavior characteristics associated with the valve device with respect to the bodily system;
and
inferring a value of a parametric behavior characteristic of the one or more parametric behavior characteristics associated with the valve device based on comparison between the signal data and the behavioral model.

1 more element

A method of developing a behavioral model for use in inferring a value of a parametric behavior characteristic that indicates function of a valve device, comprising:

measuring, by a plurality of sensors associated with a valve device implanted within an animal bodily system over a plurality of cycles, a set of operational characteristics associated with the valve device including:
an intracavity pressure associated with a first cavity of the animal bodily system;
and
a set of indirect operational characteristics of the valve device, including timestamps associated with an opening action of the valve device or a closing action of the valve device over the plurality of cycles, and fluid flow through the valve device;
and
constructing a behavioral model for the valve device representing connections between the intracavity pressure and the set of indirect operational characteristics of the set of operational characteristics.

3 more elements

Dependencies are inferred from the claim text.

Systems and methods for implantable self-monitoring systems to detect pressure and flow characteristics

Life of this patent

Systems and methods for implantable self-monitoring systems to detect pressure and flow characteristics

Life of this patent

Abstract

Claims20